Radiation therapy positioning board



FIG. 1 is a front elevational view of the design for the radiation therapy positioning board of the present invention;

FIG. 2 is a back elevational view of the invention;

FIG. 3 is a right side elevation of the invention. The left side elevation is the mirror image of the right side elevation;

FIG. 4 is a top view of the invention; and,

FIG. 5 is a bottom view of the invention. 

The ornamental design for a radiation therapy positioning board, as shown and described. 